1400017242 has 64 divisors (see below), whose sum is σ = 3251687040. Its totient is φ = 398131200.

The previous prime is 1400017237. The next prime is 1400017243. The reversal of 1400017242 is 2427100041.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1400017243) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 49242 + ... + 72282.

It is an arithmetic number, because the mean of its divisors is an integer number (50807610).

Almost surely, 2^1400017242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1400017242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1625843520).

1400017242 is an abundant number, since it is smaller than the sum of its proper divisors (1851669798).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1400017242 is a wasteful number, since it uses less digits than its factorization.

1400017242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23119.

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 1400017242 is about 37416.8042729467. The cubic root of 1400017242 is about 1118.6935345470.

Adding to 1400017242 its reverse (2427100041), we get a palindrome (3827117283).

The spelling of 1400017242 in words is "one billion, four hundred million, seventeen thousand, two hundred forty-two".